Physical sciences topic list of research papers
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Inflation with multiple sound speeds: A model of multiple DBI type actions and non-Gaussianities
Abstract In this Letter we study adiabatic and isocurvature perturbations in the frame of inflation with multiple sound speeds involved. We suggest this scenario can be realized by a number of generalized scalar fields with arbitrary kinetic forms....
2009 / Yi-Fu Cai, Hai-Ying Xia -
A note on the examination of isospin effects in multi-dimensional Langevin fission dynamics
Abstract In [W. Ye, F. Wu, H.W. Yang, Phys. Lett. B 647 (2007) 118] prescission protons and α particles of high-isospin 206Pb were shown to be almost independent of the dissipation strength k ...
2011 / W. Ye, F. Wu, H.W. Yang -
Non-Abelian discrete dark matter
Abstract We consider the minimal model in which dark matter is stabilized by a non-Abelian discrete symmetry. The symmetry group is taken to be D 3 ...
2011 / Adisorn Adulpravitchai, Brian Batell, Josef Pradler -
Spherical collapse model with and without curvature
Abstract We investigate a spherical collapse model with and without the spatial curvature. We obtain the exact solutions of dynamical quantities such as the ratio of the scale factor to its value at the turnaround epoch and the ratio of the...
2010 / Seokcheon Lee -
Transition from isolated to overlapping resonances in the open system of interacting fermions
Abstract We study the statistical properties of resonance widths and spacings in an open system of interacting fermions. At the transition between isolated and overlapping resonances, a radical change in the width distribution occurs with...
2007 / G.L. Celardo, F.M. Izrailev, V.G. Zelevinsky, G.P. Berman -
Transition from baryonic to mesonic freeze-out
Abstract The recently discovered sharp peak in the K + / π ...
2005 / J. Cleymans, H. Oeschler, K. Redlich, S. Wheaton -
Proposed new probe of modified gravity
Abstract We suggest a new efficient way to constrain a certain class of large scale modifications of gravity. We show that the scale-free relation between density and size of dark matter halos, predicted within the ΛCDM model with Newtonian gravity, ...
2010 / A. Boyarsky, O. Ruchayskiy -
A new method for calculating differential distributions directly in Mellin space
Abstract We present a new method for the calculation of differential distributions directly in Mellin space without recourse to the usual momentum-fraction (or z-) space. The method is completely general and can be applied to any process. It is...
2006 / Alexander Mitov -
Thermodynamics of exotic black holes, negative temperature, and Bekenstein–Hawking entropy
Abstract Recently, exotic black holes whose masses and angular momenta are interchanged have been found, and it is known that their entropies depend only on the inner horizon areas. But a basic problem of these entropies is that the second law of...
2007 / Mu-In Park -
The 14N(p,γ)15O reaction, solar neutrinos and the age of the globular clusters
Abstract We discuss implications of a new measurement of 14 N(p,γ)15 O concerning solar neutrinos, solar models and globular cluster dating. Predictions...
2004 / S. Degl'Innocenti, G. Fiorentini, B. Ricci, F.L. Villante -
GUT scale inflation, non-thermal leptogenesis, and atmospheric neutrino oscillations
Abstract Leptogenesis scenarios in supersymmetric hybrid inflation models are considered. Sufficient lepton asymmetry leading to successfull baryogenesis can be obtained if the reheat temperature T r ...
2004 / V.N. Senoguz, Q. Shafi -
Influence on the entropic force by the virtual degree of freedom on the holographic screen
Abstract We generalize the study of entropic force to a general static spherical spacetime and examine the acceleration, temperature, equation of gravity and the energy associated with the holographic screen in this general background. We show that...
2010 / Qiyuan Pan, Bin Wang -
Decay of Z boson into photon and unparticle
Abstract We study the decay of the standard model Z boson into unparticle plus a single photon through a one-loop process. As in the anomaly type decay, only the axial-vector part of the Z coupling matching with the vector unparticle and/or the...
2008 / Kingman Cheung, Thomas W. Kephart, Wai-Yee Keung, Tzu-Chiang Yuan -
Classically conformal B–L extended Standard Model
Abstract Under a hypothesis of classically conformal theories, we investigate the minimal B–L extended Standard Model, which naturally provides the seesaw mechanism for explaining tiny neutrino masses. In this setup, the radiative gauge symmetry...
2009 / Satoshi Iso, Nobuchika Okada, Yuta Orikasa -
Key ideas in quantum error correction2012 / R. Raussendorf
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Universal Quantum Computation with Abelian Anyon Models
Abstract We consider topological quantum memories for a general class of abelian anyon models defined on spin lattices. These are non-universal for quantum computation when restricting to topological operations alone, such as braiding and fusion....
2011 / James R. Wootton, Jiannis K. Pachos -
Reflected laser radiation - relevance for laser safety?
Abstract Safety is compulsory in today’s production lines. Those lines often use laser material processing applications. The highest risk for the operator or a bystander of a laser application is the exposure to the direct beam. With the present...
2010 / M.F. Zaeh, S. Braunreuther, R. Daub, T. Stadler -
Measurements of the strong-interaction widths of the kaonic 3He and 4He 2p levels
Abstract The kaonic 3He and 4He X-rays emitted in the 3 d → 2 p transitions were measured in the SIDDHARTA ...
2012 / M. Bazzi, G. Beer, L. Bombelli, A.M. Bragadireanu, M. Cargnelli, et al. -
Cross-section measurements of neutron threshold reactions in various materials
Abstract As members of international collaboration “Energy and Transmutation of radioactive Waste” we routinely use (n,xn) threshold reactions in various materials to measure high energy neutron flux from spallation reactions. The cross–sections of...
2012 / J. Vrzalová, O. Svoboda, A. Kugler, M. Suchopár, V. Wagner -
A parametric model for heterogeneity in paired Poisson counts2006 / Constantinos Goutis, Rex F. Galbraith